Table 4 Eye movement characteristics of participants with normal and impaired executive function measured by the organization T score.

From: Development of an eye-tracking system based on a deep learning model to assess executive function in patients with mental illnesses

 

Normala

Impairedb

Statistical analysisc

(N = 385)

(N = 23)

T

P

Number of fixations

486.3 ± 106.3

416.1 ± 107.1

3.078

0.002**

Average duration of fixations (ms)

311.9 ± 79.6

346.0 ± 115.7

− 1.395

0.176

Average saccade amplitude

3.4 ± 0.9

3.4 ± 0.9

0.203

0.839

Duration (ms)

191,026.0 ± 13,375.5

184,777.0 ± 5122.8

4.931

 < 0.001**

Number of blinks

97.9 ± 62.7

95.87 ± 49.1

0.151

0.880

Number of saccades

485.7 ± 106.2

415.5 ± 107.1

3.077

0.002**

  1. aNormal executive function, organization T score 40–70.
  2. bImpaired executive function, organization T score < 39.
  3. cIndependent t test or Welch's t test if the variances were not equal.
  4. The data are presented as the means ± standard deviations. *The mean difference is significant at the 0.05 level. **The mean difference is significant at the 0.005 level.
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